Sulieman, Salwa Hassan Ahmed. “Indicators of Desertification and Its Impact on the Degradation of Agricultural Lands: A Study of the Geography of Gadaref State”. Journal of agricultural, environmental and veterinary sciences 7, no. 4 (December 30, 2023): 1–10. Accessed December 19, 2025. https://www.ajsrp.ojsexpert.com/index.php/jaevs/article/view/7188.